Package com.iizix.server.webthumbs
Class WebThumbs
- java.lang.Object
- com.iizix.server.webthumbs.WebThumbs
 
- public class WebThumbs extends java.lang.ObjectClass holding all web thumbnails together and requesting only the ones needed.- Author:
- Christopher Mindus
 
- Field Summary- Fields - Modifier and Type - Field - Description - static boolean- DEBUGThe debug flag.
 - Constructor Summary- Constructors - Constructor - Description - WebThumbs(ServerShell server)Constructor.
 - Method Summary- All Methods Static Methods Instance Methods Concrete Methods - Modifier and Type - Method - Description - static java.lang.String- fileNameToSite(java.lang.String fileName)Converts a file name into a potential web site name.- WSFileProvider- getFileProvider()Gets the file provider for thumbnails that are persistent.- WebThumbnail- requestWebThumbnail(java.lang.String site)Requests a new thumbnail for a site.- static java.lang.String- siteToFileName(java.lang.String site)Gets the file name to use in the file provider for a web site thumbnail.- static java.lang.String- siteToFileName(java.lang.String site, int width, int height, int quality)Gets the file name to use in the file provider for a web site thumbnail.- static java.lang.String- stringToSite(java.lang.String site)Converts an URL or email to a potential web site.- static java.lang.String- urlToSite(java.net.URL url)Converts a URL into a potential web site name.- static java.lang.String- urlToSite(InternetAddress address)Converts an email address into a potential web site name.
 
- Field Detail- DEBUG- public static final boolean DEBUG The debug flag.- See Also:
- Constant Field Values
 
 
 - Constructor Detail- WebThumbs- public WebThumbs(ServerShell server) throws java.io.IOException Constructor. This constructor should NOT be called directly, it is handled from the Server itself.- Parameters:
- server- The server instance.
- Throws:
- java.io.IOException- If the COMMON_PERSISTENT file provider could not
- java.lang.IllegalStateException- If constructor is called outside of the server itself.
 
 
 - Method Detail- siteToFileName- public static java.lang.String siteToFileName(java.lang.String site, int width, int height, int quality)Gets the file name to use in the file provider for a web site thumbnail.- Parameters:
- site- The web site name, e.g. "oracle.com" or "www.oracle.com".
- width- The requested width of the image, range 10-1000.
- height- The requested height of the image, range 10-1000.
- quality- The quality of the image (0=pixel-perfect as PNG, otherwise 1-100 for JPG quality).
- Returns:
- File file name to use as below. File name ends with ".jpg" when qualityis 1-100, or ".png" whenqualityis zero (loss-less). "website-"+site.toLowerCase()+"-thumbnail-"+width+'x'+height+".jpg".
- Throws:
- java.lang.IllegalArgumentException- If- widthis not in range of 10-1000,- heightis not in range of 10-1000, or- qualityis not in range of 0-100.
 
 - siteToFileName- public static java.lang.String siteToFileName(java.lang.String site) Gets the file name to use in the file provider for a web site thumbnail.- Parameters:
- site- The web site name, e.g. "oracle.com" or "www.oracle.com".
- Returns:
- File file name to use as "website-"+site.toLowerCase()+"-thumbnail.png".
 
 - fileNameToSite- public static java.lang.String fileNameToSite(java.lang.String fileName) Converts a file name into a potential web site name.- Parameters:
- fileName- The file name.
- Returns:
- The site name, or nullis doesn't follow the rule"website-"+site.toLowerCase()+"-thumbnail.png".
 
 - urlToSite- public static java.lang.String urlToSite(java.net.URL url) throws java.net.MalformedURLExceptionConverts a URL into a potential web site name.- Parameters:
- url- The URL.
- Returns:
- The site name, or nullit cannot be established properly. The protocol is not specified (http/https).
- Throws:
- java.net.MalformedURLException- If the address cannot be turned into a web site "URL".
 
 - urlToSite- public static java.lang.String urlToSite(InternetAddress address) throws java.net.MalformedURLException Converts an email address into a potential web site name.- Parameters:
- address- The mail address.
- Returns:
- The site name, or nullit cannot be established properly. The protocol is not specified (http/https).
- Throws:
- java.net.MalformedURLException- If the address cannot be turned into a web site "URL".
 
 - stringToSite- public static java.lang.String stringToSite(java.lang.String site) throws java.net.MalformedURLExceptionConverts an URL or email to a potential web site.- Parameters:
- site- The string as a potential site.
- Returns:
- The web site name, never null. The protocol is not specified (http/https).
- Throws:
- java.net.MalformedURLException
 
 - getFileProvider- public WSFileProvider getFileProvider() Gets the file provider for thumbnails that are persistent.- Returns:
- The file provider.
 
 - requestWebThumbnail- public WebThumbnail requestWebThumbnail(java.lang.String site) throws java.net.MalformedURLException, java.lang.IllegalStateException Requests a new thumbnail for a site. If already present, it will be returned directly, otherwise you might have to wait for it using the- WebThumbnail.waitForCompletion(Runnable)- Parameters:
- site- A URL string where the protocol will be stripped.
- Returns:
- The instance of a WebThumbnail.
- Throws:
- java.net.MalformedURLException- If the protocol in invalid.
- java.lang.IllegalStateException- If the WebThumbs instance is disposed of or was not initialized with a proper API key.